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鎬京→洛邑・咸陽・長安→洛陽・洛陽・洛陽→建康 洛陽・大興・長安・汴州・開封→臨安・大都・金陵→北京・北京
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO? Memorize
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